Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
William C. Bushong0
Jeffrey A. Poirier0
Miguel E. Armacanqui0
Viet H. Vu0
David R. Mihara0
Ernest Ndzebet0
Gregory S. Moy0
Date of Patent
January 30, 2007
0Patent Application Number
103753810
Date Filed
February 27, 2003
0Patent Primary Examiner
Patent abstract
A sulfonic acid type organic surfactant is incorporated into the gelled anode mixture of an alkaline electrochemical cell, optionally with an organic phosphate ester surfactant. Zinc fines may also be incorporated into the anode. The electrolyte included in the anode mixture may have a reduced hydroxide concentration. When a cell is provided whose anode mixture includes the two surfactants and zinc fines alone or in combination with a lowered hydroxide concentration in the electrolyte, discharge leakage is reduced and gel gassing is suppressed relative to that of gels lacking both surfactants. Additionally, cell discharge performance is improved relative to that of cells lacking both the zinc fines and lowered hydroxide concentration.
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